Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 1027 | N24 | W06 | 04 | 0060 | Beta | Sep 26, 2009 | Oct 3, 2009 | Oct 17, 2009 |
| № 1026 | S30 | E17 | 01 | 0020 | Alpha | Sep 28, 2009 | Oct 5, 2009 | Oct 19, 2009 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1980, January to 2009, September. Gray background - average solar cycle.
